Virtualization Everywhere
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Virtualization allows multiple virtual machines to run on a single physical server. This improves hardware utilization, reduces costs, and increases flexibility. There are several popular virtualization software options, including VMWare, XenServer, and Microsoft Virtual Server. These software solutions allow virtual machines to access server resources through a virtualization layer, improving consolidation and management of servers. Overall, virtualization provides significant benefits for data center operations and management.
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This document discusses virtualization and cloud computing. It defines virtualization as using software to run multiple virtual machines on a single physical machine. This allows for better hardware utilization and separation of software from hardware. Cloud computing builds upon virtualization by providing on-demand access to computing resources over the internet. Major cloud service models include Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Virtualization is the foundation that enables cloud computing.
Linux virtualization
The virtualization can be described in a generic way as a separation of the service request from the underlying physical delivery of that service. In computer virtualization, an additional layer called hypervisor is typically added between the hardware and the operating system. The hypervisor layer is responsible for both sharing of hardware resource and the enforcement of mandatory access control rules based on the available hardware resources.
There are three types of virtualization: full virtualization, para-virtualization and operating system level (OS-level) virtualization.
Virtualization
This document discusses virtualization and provides information on different types of virtualization including hardware virtualization, desktop virtualization, and operating system virtualization. It describes virtual machines and how they operate based on the architecture and functions of real computers. Benefits of virtualization include conserving energy, improving ease of management, enabling testing and learning, reducing backup times, and maintaining legacy applications. Potential disadvantages include performance impacts if the server hosting virtual machines fails and demands for powerful hardware. The document also provides details about Oracle VM VirtualBox software.
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VMware ESX Server provides a bare-metal virtualization platform for running multiple virtual machines on a single physical server. It allows for high utilization of server resources and isolation of virtual machines. ESX Server provides tools for granular management of CPU, memory, storage and network resources for virtual machines. It also includes features for remote management, availability, live migration of virtual machines, and support for many operating systems and hardware configurations.
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This document discusses various types of virtualization including hardware virtualization, OS virtualization, and desktop virtualization. It provides examples of virtualization software including VMware, QEMU, and Microsoft Virtual PC. VMware is highlighted as the industry leader with products like ESX that run as hypervisors on hardware. The document also performs a SWOT analysis of virtualization, noting strengths like adaptability and live migration, weaknesses like cost, and threats like security breaches and new competition.
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Virtualization Everywhere
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